阿魏酸对视网膜神经细胞内游离钙浓度变化的影响

Chinese Ophthalmic Research(2004)

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Abstract
目的研究阿魏酸(FA)对视网膜神经细胞内游离钙([Ca2+]i)水平变化的影响.方法以胚胎7个月人视网膜,新生小牛视网膜和生后4个月小鼠视网膜为研究对象,检测FA作用后[Ca2+]i水平变化.结果500μg/mL FA作用下,胚胎人组[Ca2+]i荧光强度(基值为57.08±3.97)在10 s内降至38.41±4.92,维持在38.41±4.92~43.45±3.29;新生小牛组[Ca2+]i(基值为69.48±3.87)在20 s内降至52.86±3.69,维持在49.75±3.82~54.39±4.04;成年小鼠组[Ca2+]i(基值为71.54±3.73)在20 s内降至54.91±3.57,维持在53.81±3.49~58.14±3.49,且发现胚胎人组[Ca2+]i基值和受光照射后变化明显异于新生期小牛组和成年小鼠组.结论FA能有效降低视网膜神经细胞内游离钙水平,对于促进增殖和保护细胞具有重要作用.
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Key words
Calf,Cytosolic free calcium,Ferulic acid,Human,Mouse,Nerve cell,Retina
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